What is the primary goal of the TDD Refactor Phase skill?

The primary goal is to improve the internal structure and quality of the code without changing its external behavior, ensuring all existing tests continue to pass.

How does it help with SOLID principles?

It provides a checklist and guidance for applying Single Responsibility, Open/Closed, and other SOLID principles to make the code more robust and extensible.

Does this skill allow adding new functionality?

No, the Refactor Phase specifically prohibits adding new features. New functionality should be handled in the 'Red' (Test) and 'Green' (Implementation) phases of TDD.

Can I use this for legacy code cleanup?

Yes, it is highly effective for legacy code as long as there are existing tests to verify that the refactoring doesn't break current functionality.

TDD Refactor Phase Expert

Name: TDD Refactor Phase Expert
Author: pagerguild

bypagerguild

0•

Security & Testing

Improves code quality and maintainability during the TDD refactoring stage while ensuring behavior remains unchanged and tests pass.

The TDD Refactor Phase Expert is a specialized Claude Code skill designed to guide developers through the crucial third stage of the Test-Driven Development cycle. It focuses on cleaning up technical debt, reducing complexity, and applying SOLID principles only after a green (passing) state has been achieved. By enforcing strict refactoring rules—such as making small, incremental changes and verifying test success at every step—this skill helps maintain a high-quality codebase without the risk of accidental regressions or scope creep.

Key Features

01Provides a systematic workflow for behavior-preserving code transformations

020 GitHub stars

03Identifies and addresses code smells including duplication, long functions, and magic numbers

04Integrates with TDD enforcer scripts to verify phase status and test coverage

05Enforces TDD refactoring discipline by prohibiting new features during cleanup

06Applies SOLID principles and Clean Code patterns to improve software architecture

Use Cases

01Cleaning up 'quick and dirty' code immediately after passing a unit test

02Restructuring deeply nested logic into readable, maintainable functions

03Systematically applying DRY and SOLID principles to complex legacy modules

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add pagerguild/guilde-plugins tdd-refactor-phase

For use in Claude.ai and ChatGPT

Download Skill